Suprvsn of preg w history of pre-term labor, third trimester

This code signifies ongoing prenatal care for a pregnant patient in her third trimester who has a documented history of preterm labor in a previous pregnancy. It indicates that the current pregnancy is being closely monitored due to this elevated risk factor for premature delivery.

Apply this code when a pregnant patient presents for a prenatal visit during her third trimester and her medical history explicitly states a prior episode of preterm labor. Documentation should clearly indicate the current gestational age and the historical preterm labor event.

• Ensure the patient is definitively in her third trimester (28 weeks gestation or greater).
• This code is for supervision of a high-risk pregnancy, not for an active preterm labor event.
• Always sequence this code as a primary diagnosis when it is the focus of the encounter, followed by any relevant secondary conditions.